Seiko Cal. 5231 - 711

The Seiko 5231-711 represents an important milestone in Seiko's 1987 lineup. Powered by the 5231 caliber with 20j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-ae71f00a1ba5]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1987

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